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20 Episodes 2015 - 2016
Episode 1
Mon, Oct 26, 201545 mins
Twenty-four-year-old Kara Zor-El, cousin of Superman, who was taken in by the Danvers family when she was 13 after being sent away from Krypton, must learn to embrace her powers after previously hiding them. The Danvers teach her to be careful with her powers, until she has to reveal them during an unexpected disaster, setting her on her journey of heroism.

Episode 2
Mon, Nov 2, 201543 mins
Kara must put doubts aside as she tries to apprehend an escapee from the Kryptonian prison; Cat pressures James for an interview with Supergirl.

Episode 3
Mon, Nov 9, 201543 mins
Supergirl's powers are put to the test when one of Superman's most formidable enemies, Reactron, shows up in National City to take her down. In the meantime, Cat makes plans to run an expose on Supergirl.

Episode 4
Mon, Nov 23, 201543 mins
Kara must protect National City from a series of bombings and babysit Cat's son, while James is visited by Lucy Lane.

Episode 5
Mon, Nov 16, 201543 mins
Kara's foster mother visits for Thanksgiving, while an accident transforms a volatile CatCo employee into Livewire.

Episode 6
Mon, Nov 30, 201543 mins
Stress makes Kara go too far during a training exercise against a military cyborg commissioned by General Sam Lane, while Cat's mother comes to visit and Winn helps Alex investigate her father's death.

Episode 7
Mon, Dec 7, 201543 mins
Kara and her friends are forced to rely on their inner strength and courage when an earthquake strikes National City, while Alex's mistrust of Hank reaches its breaking point when the earthquake traps them in the DEO with an alien escapee called Jemm.

Episode 8
Mon, Dec 14, 201543 mins
Kara must face her evil aunt Astra when she threatens the safety of National City and challenges Kara's beliefs about her mother while Cat must also face her own problems when she is threatened to be removed from her job as CEO of CatCo when a few personal e-mails are exposed by a hacker that could damage her career.

Episode 9
Mon, Jan 4, 201643 mins
The confrontation between the DEO and Astra's forces at Lord Enterprises ends with Hank being taken. General Lane shows to take control of the DEO in Hank's absence. Kara tries to talk to Astra but she's unwilling to open up. Cat suspects Kara is Supergirl. Jimmy decides to investigate Lord and asks Winn to help. And when it doesn't turn out well, and when Kara learns of this she wants to go after Lord but Jimmy and Winn tell her to cool off. She then goes to Astra and hears her side of what happened between her and her mother. Kara then makes a decision.

Episode 10
Mon, Jan 18, 201643 mins
Kara does her best to support Winn when he hears that his father Winslow Schott Sr. broke out of prison. His father looks for Winn for a reason to become like him. Cat offers Lucy a job working at CatCo and Alex asks Hank to use his powers to find out and uncover Maxwell Lord's plans.

Episode 11
Mon, Jan 25, 201643 mins
A Senator who opposes alien presence on Earth comes to National City to speak. And it's while she's speaking that an alien appears and grabs her. That's when the DEO shows up and Hank is frozen when he sees the alien. He reveals the alien is the one that wiped out his people. They later find the alien's lair and rescue the Senator. They bring her to the DEO and she asks Hank about rumors of an alien at the DEO. Hank evades answering her. Later Kara learns the Senator is the alien. They try to get it but it gets away. Hank says it came to get him. Cat's son comes to see her because Kara sent the letter she wrote but decided not to send it.

Episode 12
Mon, Feb 1, 201643 mins
Kara must deal with a twisted version of Supergirl, while venturing into a possible romance.

Episode 13
Mon, Feb 8, 201643 mins
A parasitic alien attaches itself to Kara and traps her in a world where Krypton was never destroyed, leaving Alex, Hank and the DEO to fend off a Kryptonian attack without her.

Episode 14
Mon, Feb 22, 201643 mins
Supergirl battles the deadly Master Jailer, who sets out to hunt down and execute the escaped prisoners of Fort Rozz. While Cat Grant hires a second assistant, Siobhan Smythe, who immediately tries to outdo Kara at her job. Following Astra's death, Kara and James disagree with the DEO's methods and refuse to continue working with them. Also, Cat shares her theories about Maxwell Lord's disappearance.

Episode 15
Mon, Feb 29, 201644 mins
Kara travels to the Fortress of Solitude hoping to find information on how to defeat Indigo, a being from her past who can travel through the Internet. In the meantime, James and Lucy reach a crossroads in their relationship.

Episode 16
Mon, Mar 14, 201644 mins
Red Kryptonite makes Kara malicious and dangerous while Cat appears on The Talk (2010) to discuss Supergirl.

Episode 17
Mon, Mar 21, 201644 mins
J'onn J'onzz reveals how he met Jeremiah Danvers and assumed the identity of Hank Henshaw.

Episode 18
Mon, Mar 28, 201643 mins
When former CatCo employee, Siobhan Smythe upset at how her life is going discovers something odd about herself. She then goes to a relative who tells her of their family's secret--that they were cursed by a banshee. Which comes out when one of them is angered. And she needs to destroy the object of their anger, in this case Cat, Kara and Supergirl. Siobhan tries to kill Kara but she Kara saved by a visitor from another universe, The Flash who was attempting to cross into another universe and ended up in hers. Kara reveals herself as Supergirl to Flash and both try to figure out how to get him back to his universe. Siobhan who now calls herself Silver Banshee makes another attempt but is captured by Supergirl. And she's taken to the DEO. and while there she meets Live wire. And later she escapes and frees Livewire and together they team up to go after Supergirl.

Episode 19
Mon, Apr 11, 201642 mins
Non activates Myriad which turns all humans in National City to mindless zombies under his control. Supergirl is all alone and discover two people who are not affected. She awaits her cousin to come help but even he is affected. So she needs to decide whether or not to do something drastic.

Episode 20
Mon, Apr 18, 201641 mins
Supergirl is forced to do battle with an unexpected enemy as she risks everything - including her life - to stop Non and Indigo from destroying everyone on Earth.
